weekday(n = noun.time) - any day except Sunday (and sometimes except Saturday);
is a kind of day of the week
has particulars: work day, workday, working day, feria, mon, monday, tues, tuesday, midweek, wed, wednesday, th, thursday, fri, friday, sabbatum, sat, saturday

weekday, n. a day other than Sunday or other than at a weekend (often attrib.: a weekday afternoon).